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Physics

Physics
Light travels slowest in

Glass
Air
Vacuum
Water

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Physics
Fiber optics cable used in communication, works on the principle of

Refraction of light
Total internal reflection of light
Regular reflection of light
Diffuse reflection of light

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Physics
Sound travels at the fastest speed in

vacuum
steel
water
air

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Physics
Energy of Ultraviolet rays is great than

Gamma rays
X-rays
Cosmic rays
Infrared rays

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Physics
Which one of the following processes is responsible for the glittering of air bubble rising through water?

Reflection of light
Scattering of light
Total internal reflection of light
Refraction of light

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Physics
The radiant energy having lowest energy is

Visible light
Gamma rays
Microwave radiation
UV rays

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MORE MCQ ON Physics

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